I very much liked this game in the beginning, it required clever thinking and you had all the tools and parts of the problem clearly laid out. But then it introduced the stupid guns (part of the frustration was how frustrating they were to use) and it was never clear if this was just something you couldn't pass until you got some other tool or if you were just being stupid or had not been efficient enough with your block usage earlier on. As much as I liked the nonlinear puzzle completion method it got so annoying for two reasons at the end. For one you were never sure if you needed to go somewhere else to get something and exactly which puzzle would aid you with getting out. Maybe you needed another gun and going this way would get it but is pursuing this really going to get that gun or is it another one of those fu************************** developer rooms or even worse a stupid purple block, you feel like you have accomplished absolutely nothing when you find one of those. The second reason is that the map is confusing places you are sure have nowhere else to go still have an arrow, you can never find somewhere u have been and just realized how to solve, or puzzles that have already been completed. Also I was hoping for a nonstory puzzle game not some aliens crap.
9.5/10 Would bang if payment included portal gun